How severe is CVE-2026-24836?

CVE-2026-24836 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-24836 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24836?

CVE-2026-24836 affects Dnnsoftware Dotnetnuke. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24836?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-24836 have an EU (EUVD) identifier?

Yes. CVE-2026-24836 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4863.

When was CVE-2026-24836 published?

CVE-2026-24836 was published on 2026-01-28 and last updated on 2026-06-17.

CVE-2026-24836

CVE-2026-24836 is a high-severity vulnerability in Dnnsoftware Dotnetnuke with a CVSS 3.x base score of 7.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 7.6)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4863
Weakness: CWE-79
Affected product: Dnnsoftware Dotnetnuke
Published: 2026-01-28
Last modified: 2026-06-17

Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Starting in version 9.0.0 and prior to versions 9.13.10 and 10.2.0, extensions could write richtext in log notes which can include scripts that would run in the PersonaBar when displayed. Versions 9.13.10 and 10.2.0 contain a fix for the issue.

Frequently asked questions

What is CVE-2026-24836?: DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Starting in version 9.0.0 and prior to versions 9.13.10 and 10.2.0, extensions could write richtext in log notes which can include scripts that would run in the PersonaBar when displayed. Versions 9.13.10 and 10.2.0 contain a fix for the issue.
How severe is CVE-2026-24836?: CVE-2026-24836 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-24836 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24836?: CVE-2026-24836 affects Dnnsoftware Dotnetnuke. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24836?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-24836 have an EU (EUVD) identifier?: Yes. CVE-2026-24836 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4863.
When was CVE-2026-24836 published?: CVE-2026-24836 was published on 2026-01-28 and last updated on 2026-06-17.

References

https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-2g5g-hcgh-q3rp

Affected products (1)

cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*

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